Like a postgraduate diploma, it is standard practice to use 'PGCert' as a post-nominal designation after completing the certificate course.
[2] Although requirements vary depending on the program, a certificate program represents a focused collection of courses that, when completed, affords the student a record of academic accomplishment in a given discipline or set of related disciplines.
The standard entry requirement is a UK honours degree or an equivalent foreign qualification.
It is typically taken as the first year exam of a PhD-course and aims at making sure that the student has learnt the necessary knowledge for successfully working on their PhD.
The typical standard of entry for a postgraduate certificate programme of study is an honour in an undergraduate degree.